A drug dealer who supplied a gun to Mark Duggan minutes before his fatal shooting by police sparked the 2011 summer riots, has been jailed for a total of 11 years.

Kevin Hutchinson-Foster was found guilty at the Old Bailey in January of giving Mr Duggan the gun 15 minutes before he was shot dead on August 4, 2011. The 29-year-old's death in Ferry Lane, Tottenham, north London, sparked riots that swept across London and other English towns and cities.

Hutchinson-Foster, 30, denied selling or transferring a prohibited firearm to Mr Duggan between July 28 and August 5, 2011. A jury failed to reach a verdict but he was convicted at the Old Bailey following a retrial.

Judge David Radford jailed him for seven years for supplying the gun, and a further four years for other offences. Hutchinson-Foster is already in custody serving a sentence for drugs offences and was on licence at the time of the offence.

He was also jailed after admitting using the same gun to "pistol whip" a barber five days before. He is seen on CCTV threatening Peter Osadebay then returning and beating him with the gun until he nearly lost consciousness.

Hutchinson-Foster was jailed for four years for possessing a firearm with intent to cause fear of violence and nine months concurrently for assault occasioning actual bodily harm.

Judge Radford told Hutchinson-Foster he could not be held responsible for what happened later. But he had passed an illegal weapon with a bullet in its magazine to Mr Duggan "for what must have been for a serious criminal purpose".

Stuart Denney QC, defending, said: "He cannot take responsibility for what happened in Ferry Lane or in terms of the riot.... There are those who think that in some way, Mr Hutchinson-Foster's conduct contributed to the death of Mark Duggan, which is entirely inaccurate."

Detective Chief Superintendent Dean Haydon, of the Metropolitan Police Trident Gang Crime Command, said later: "I welcome the sentence today as this is the culmination of a complex and lengthy investigation and the sentence reflects the seriousness of his offending.

"There is an ongoing IPCC investigation into the death of Mark Duggan and the circumstances of his death will be a matter for the Coroner at a later date. The investigation into the shooting of Mark Duggan is being conducted by the Independent Police Complaints Commission."